The sun is an inexhaustible source of energy, which a person finds new application every year. These are toys powered by the energy of this star, solar-powered chargers that allow you to charge mobile devices where there is no possibility of connecting to the mains, backpacks are a permanent attribute of people who prefer outdoor activities, caps, straps, fountains, etc. All of them accumulate solar energy designed to serve people. You feel comfortable with them everywhere.
The worst disaster is to go somewhere in the heat by car. But, a solution has been found - this is a solar-powered fan. He eliminated the need to connect bulky fans to the cigarette lighter, because it works autonomously using solar energy. By attaching a compact fan to the side window of the car, the interior will be filled with the long-awaited coolness, leaving the cigarette lighter for connecting a DVR or charging a mobile phone.
Scheme of work
The technology of this gadget is absolutely harmless and environmentally friendly. The scheme of work is simple to the banal: sunlight, falling on the photocells, generates energy, which makes the fan spin.
The best part is that the free power source for these fans cannot be spoiled.
The solar panels are connected to a low-voltage fan that blows cool air through small intake holes, exhausting hot air from the car (through an open window).
You can attach it anywhere in the side window, adjusting so that it blew into the rear or front seats.
It is reliably protected from mechanical influences and weather surprises by car glass. Its dimensions and weight are small, and the price will not hit the family budget too much.
You can install it on any car and drive on a hot day enjoying the coolness, and even saving your car battery, because, unlike the same air conditioner, it does not need battery power. In addition to the fact that the fan will cool the interior, it will remove unpleasant odors from it.
It is clear that having installed such a gadget, one cannot rely on the temperature provided by the air conditioner, which uses high-pressure coolant to lower the temperature, due to which cold air is supplied to the passenger compartment with a powerful fan, but you will not have to ride in stuffy atmosphere with a fan. The disadvantage of fans powered by sunlight is that in cloudy weather they cannot perform their functions, as when they are installed on tinted windows. But, manufacturers are already working in this direction: solar fans have appeared with the ability to connect to a twelve-volt vehicle outlet, i.e. if there is a lack of solar energy, the fan can receive a small amount of energy from the car battery to start working.
Flat plate solar collector and its features
Such systems are among the most popular. Let's take a quick look at their design and how they work. We have an absorber - an element that absorbs solar energy. It has a special transparent coating and an insulating layer. The absorber connects directly to the heat transfer system. The surface color is usually black, which allows for a slight increase in work efficiency.
The pipes that are necessary for the transfer of the coolant are made of copper. If the collector is idle, the water can be heated up to 190 degrees Celsius. Naturally, the higher the intensity and amount of solar energy, the higher the efficiency of such a solar system. However, it is not uncommon for a flat solar collector to be equipped with optical devices to collect energy more efficiently. The absorbent must have a high thermal conductivity, so copper and aluminum screens are often installed.
Auto Cooler Features
For the Auto Cooler fan, the figures will be as follows: 15x11x7cm, 380 grams and 110 UAH. The size of the solar panel is 5.5 x 5.5 cm, the length of the rubber tube is about 95 cm. The body is made of high quality black plastic.
Solar fans for cars, sometimes called solar fans, are able to reduce the air in the cabin to a temperature that is normally perceived by humans.
What are consumers saying?
We have already figured out a little about what a solar collector can be. Customer reviews are almost always different. Some are very happy with innovative systems, while others, on the contrary, regret the wasted money. But overall, the picture looks good. Approximately 75% of shoppers say good things about the system. By the way, air collectors are rarely bought, at least in Russia, so nothing can be said about them. But vacuum solar systems have shown themselves to be reliable suppliers of heat to the house. But here it is worth noting that much depends on the specialists who install such complex and expensive equipment. If something is done incorrectly, then the efficiency of the system will be lower. In Europe, the situation is somewhat different. People are happy to install solar systems, since their prices are somewhat lower there, and the prevalence is higher. However, they are very rarely used as the main source of heat, since it cannot be argued that the best alternative to gas or coal is a solar collector. Reviews, by the way, suggest that it is very expensive and not always advisable.
Benefits
In addition to the possibility of gaining the desired coolness, the solar fan will keep the surfaces of the car exposed to the sun, primarily the dashboard, from cracks that inevitably appear if the car is under the scorching rays of the sun for a long time. As already mentioned, thanks to it, the car is cooled with clean energy from an environmental point of view. It also reduces the load on the air conditioner that drains the battery. Well, for whom the air conditioner is still a pipe dream - such a fan is a godsend. After all, those who drive old-style cars know firsthand that on hot days the salon turns into a real sauna. It is easy to install the fan, it is safe for others, versatile, and can work for a short or long time when parking.
Method number 3 - vacuum manifold
It is possible to make high-quality vacuum solar collectors for heating a house with your own hands, but this requires a complete factory assembly of components - you will not be able to design everything from scratch on your own. In addition, this type of collector requires compliance with the installation rules:
- The staging should be organized so that the carrier moves from above.
- The location of the unit is only the south side of the house.
- No shadows should fall on the system. All tall buildings and trees nearby will not allow the system to be fully activated.
- No more than 3-4 boxes are installed in a row, otherwise an expansion joint will be required.
It should also be taken into account that in windy weather the load on the system increases, therefore, you also need to take care of reliable fasteners.
Application area of autonomous solar fans
Despite the fact that while solar-powered fans have not yet become widespread, the benefits of them are difficult to overestimate. But fans can help not only motorists. With their help, for example, you can cool the whole house. After all, its roof begins to heat up with the first rays of the sun, gradually the air of the attic becomes more and more hot, since both tiles and bitumen perfectly attract heat and retain it. Due to the lack of circulation, warm air does not rise. Therefore, the house begins to heat up. And no amount of thermal insulation can save you from the heat. An air conditioner that removes heat from the room is also not very effective, but is not able to cope with the huge amount of it accumulating in the attic. Besides, it is quite expensive.
The only way to stop the flow of heat from the attic is to install an exhaust fan in the vent on the roof ridge, which will allow air to circulate. A photovoltaic fan will be more efficient, providing ventilation when it is needed. In the morning, for example, the roof is not yet heated, there is no need for ventilation. As it warms up, the solar fan spins faster and faster, slowing down again in the evening.
There are also solar-powered bilge fans designed for ventilation of galleys, holds, latrines. They do not require an additional power source, they are easily mounted in the porthole, wheelhouse and deck. The most common ones are the mushroom fan - models 30002 and 30003, which differ in the presence or absence of a protective screen. In model 30003 it is present, therefore the body of the device is slightly higher.
It is needed so that dampness does not accumulate in the cabin, the air does not stagnate, and there is additional ventilation on a hot day.
The device is arranged simply: the body is made of stainless steel, a solar panel is installed inside, feeding a small fan. A completely autonomous fan works when there is light, and when there is no light, it stops working.
Many people use a mini fan on hot days, which is attached to the cap with a special clip. This device is also solar powered as it is self-contained. This wonderful accessory will be appreciated when the temperature rises above thirty degrees, and a pleasant coolness emanates from it. Its size is only 48x58 mm, the fan diameter is 73 mm, so it will be convenient for sports, fishing, travel, and simply for those who have to move around the city a lot every day.
Wall ventilator with solar panels ПСС 102
The wall ventilator is a supply unit for constant ventilation and is designed to provide living and non-residential premises with fresh air. The PSS ventilator is an economical and self-contained device for more intensive air exchange compared to passive ventilators. The ventilator allows you to fill the room with fresh air without opening windows or letting in dust, street noise, and pollen. The specially developed design of the inner grille, as well as the device for regulating the free area, ensure a uniform inflow and distribution of fresh air in the room. The ventilator is installed on the sunny side of the outer wall of an apartment, cottage, office building, etc.
Features of the
1. For supply and exhaust ventilation of small and medium-sized premises (depending on how the engine is installed); The air flow direction can be easily changed by turning the motor 180 °; 2. The presence of a solar battery provides more intensive air exchange than with conventional passive ventilation; 3. Efficiency - using the natural energy of the sun; 4. Autonomy. The engine is powered by a solar battery.Motor supply voltage - 9 ... 18V; The electrical parameters of the battery change depending on the intensity of the solar flux. Intermediate parameters are shown in the table; 5. In the dark, the ventilator functions as a passive ventilation element; 6. Possibility of manual adjustment of the air flow cross-section.
Structural elements
The ventilator consists of two ventilation grilles (internal and external) and a telescopic air duct.
The inner grille is made of high quality ABS plastic and is equipped with a dust filter (class G3). The built-in regulator allows you to change the supply air volume or completely close the ventilation duct.
Telescopic PVC air duct with adjustable length. A small motor is installed inside the duct to supply or extract air. The air flow direction can be easily changed by turning the motor 180 °.
The outer grille (ventilation hood) is made of high quality ABS plastic. A solar battery is fixed on the surface of the bell, which feeds the engine.
Design
| Supply voltage, V | Consumption current, A | Rotation frequency, min-1 | Productivity, m3 / hour |
| 9 | 0.0064 | 1390 | 13 |
| 12 | 0.0073 | 1754 | 15 |
| 15 | 0.0083 | 2140 | 17 |
| 18 | 0.0092 | 2490 | 20 |
Dimensions (edit)
Air distribution
The design of the inner grill and the device for regulating the free area ensure a uniform inflow and distribution of fresh air in the room. Depending on your needs, you can smoothly regulate the intensity of the air flow.
Brochure
Fundamental solar collector reviews from experts
According to the majority of scientists on our planet, it is solar energy that can become the key to stopping self-destruction. Today, the price of a solar collector is becoming more and more affordable, so many should consider installing this device in their home. The principle of its operation is incredibly simple, and its efficiency surprises many craftsmen in the field of boiler equipment. To get the desired answers, you need to learn more about the reviews about solar collectors from users and professionals.
Pros:
- Minimal heat loss allowing fast energy generation.
- Excellent efficiency at low temperatures, eg -20C.
- The presence of types of devices with a streamlined shape, which will allow installation on the roof of a dwelling at any angle.
- The ability to collect a large amount of energy, as a result of which the water will boil.
- Full performance in cold climates, since the main condition for the design is the presence of sunlight.
- The modularity characteristics of the device allow replacing defective parts without the need for a complete repair.
Minuses:
- Expensive cost of the desired volume of the structure, which is solved by the gradual purchase of tubes.
- The lack of the possibility of self-cleaning from snow and frost.
- Heavy loads on the structure in strong winds, which increases heat losses.
- Low efficiency in cheap device options.
Many positive reviews about vacuum-type solar collectors, and air options are considered cheaper, therefore they are inferior in many respects to their expensive prototypes. First of all, it is advisable to focus on the variety, and then pay attention to the cost. Experts say that it is still better to opt for a vacuum manifold.
Most residents of country houses believe that the acquisition of such structures will be a rather expensive decision, but in reality this is not the case. There are expensive devices that significantly save on the consumption of basic resources, so over time you can understand that such a purchase would be the ideal option.Based on the above advantages of the device, simple conclusions can be drawn that it is desirable to keep up with the times and make choices directed to the future, since new opportunities are the key to success.
